body {
    padding: 50px;
    font-size: 14px;
    font-family: "Microsoft YaHei", "微软雅黑","Lucida Grande",Helvetica,Arial,sans-serif;
}

a {
    color:#00b7ff;
}

#content {
    width:800px;
    margin: 0 auto;
}

#room {
    background-color: #ddd;
    margin-bottom: 1em;
}

#message {
    width: 690px;
    height: 300px;
    overflow: auto;
    background-color: #eee;
    margin-right: 10px;
    margin-bottom: 1em;
}

#room-list {
    float: right;
    width: 100px;
    height: 300px;
    overflow: auto;
}

#room-list div {
    border-bottom: 1px solid #eee;
}

#room-list div:hover {
    background-color: #ddd;
}

#send-message {
    width: 700px;
    margin-bottom: 1em;
    margin-right: 1em;
}